Allstar 3/16 inch Diameter 12 inch Long Stainless Steel Brake Line features brake lines that are constructed using quality 304 stainless steel. It has a 1/4 inch diameter and the brake line is 12 inches long. It features 7/16-24 ends. These brake lines meet and exceed SAE and d.o.t. requirements. The pre-made lines have standard size stainless ends for years of service and a show quality finish..